Helicopter



FIG. 1 is a side plan view of the left side of the helicopter of the present invention;

FIG. 2 is a top plan view of the helicopter of FIG. 1;

FIG. 3 is a front plan view of the helicopter of FIG. 1;

FIG. 4 is an aft plan view of the helicopter of FIG. 1; and,

FIG. 5 is a side plan view of the right side of the helicopter of FIG. 1.

A portion of the rotor blade in FIGS. 2,3, and 4 is shown broken away for convenience of illustration. 

The ornamental design for a helicopter, as shown and described. 